Apparatus for making paper containers



APPARATUS FOR MAKING PAPER CONTAINERS Original Filed Feb. 24, 1926 '7 Sheets-Sheet 1 Dec. 15, 1931. E. c. ANGELL APPARATUS FOR MAKING PAPER CONTAINERS Original Filed Feb. 24, 1926 ban H201 E1649 6/! 515 72 (,8 @Wtmwg W Dec. 15, 1931. E. c. ANGELL APPARATUS FOR MAKING PAPER CONTAINERS Original Filed Feb. 24, 1926- T Sheets-Sheet 5 514004411): ECfln geZZ, 7715 Sum,

Dec. 15, 1931. EfC ANGELL APPARATUS FOR MAKING PAPER CONTAINERS I 'T Sheets-$heet 4 Original Filed Feb. 24, 1926 rmmlm Dec. 15, 1931. c. ANGELL APPARATUS FOR MAKING PAPER CONTAINERS Sheets-Sheet 5 Original Filed Feb. 24, 1926 Dec. 15, 1931. E. c. ANGELL I APPARATUS FOR MAKING PAPER CONTAINERS '7 Sheets-Sheet I 6 Original Filed Feb. 24, 1926 v gvwe/nbov Edflnge. 9321 6 fitter/mm;

Dec. 15, 1931. c ANGELL 1,836,001

\ APPARATUS MAKING PAPER CONTAINERS Original Filed Fb. 24, 1 2 7 Sheets-Sheet 7 Patented Dem-15, 1931- UNITED STA EDWARD o. ANGELL, on NEW YORK, n. Y.

APPARATUS FOR MAKING PAPER CQNTAINERS Application filed February 24, 1926,5Seria1 No. 90,267. Renewed July 19, 1930.

The present invention pertains to meclianism for forming receptacles or containers out of paper or similar material, in which the blank or sheet of paper is brought to the rial is secured in one end of the tube.

One of the objects of this invention is to provide improved means for wrapping the blank around the mandrel, to cause its edges to lap, and be suitably secured together, such as by. previously applied adhesive on one of the lapping edges, that is moistened prior to the edges being brought together.

A further object is to provide in connection with the said folding means, an arrangement whereby the blank will be pressed against the mandrel on two opposite sides at the middle portion with the edges projecting upwardly, and thereupon the said pressing means will be caused to follow around the upper part of the mandrel to bring the edges to lap.

A further object of the invention is to-provide means for suitably vmoistening the blank dried gummed edges, prior to these edges being lapped on the mandrel.

Another object of the invention is to provide improved holders or carriers for the body, that is formed on the mandrel by se curing the lapped edges, and which holders are mounted on an endless chainor conveyer, that is intermittently advanced to bring the formed bodies, delivered into the holders from the mandrel, to receive the bottom member that is secured therein, and upon further advance the container is ejected.

In the accompanying drawings showing one embodiment of my invention,

Figure 1 is a plan View of the machine.

Figure 2 is a front elevation.

Figure 3 is a rear end view.

Figure 4 is a front end view.

Figure 5 isa detail ofthe blank wrapping .means.

Figure 6 is a sectional view on the line 66 indicated in Fig. 1, showing mechanism for feeding the blank and wrapping it around the mandrel.

50 Figure 7 is a partial vertical section across form of a tube, and a disc of the same matethe machine, indicated by the line 7-7 in Fig. 1, showing wrapping means.

Figs. 8 and 9 show the jaw device for advancing the blank.

Fig. 10 shows one of the wrapping bars with its mounting.

Fig. 11 shows the mechanism for applying the end or bottom closure disk, also indicated by the line 11-11 in Fig. 1.

12 is a fragmentary enlarged view of to the mandrel and the wrapping member below it.

Figs. 13 and 14: show a detail of the blank creasing means. Fig. 15 shows a holder as carried by the feed chain. I

Fig. 16 is an end view of the same parts.

Figs. 17, 18 and 19 show details of the same mechanism.

Fig. 20 shows the blank.

Figs. 21 and 22 show the finished container.

Fig.- 23 indicates the bottom member.

Fig. 24 shows the insertion of the latter.

Fig. 25 shows a notched edge blank.

' Fig. 26 shows closure means for the container.

Fig. 27 shows the finished body without the bottom.

Fig. 28 shows a cylindrical container.

Fig. 29 shows a spinning head.

Fig. 30 shows ratchet means for operating the chain.

Figs. 31 and 32 show locking parts for the chain.

Fig. 33 is a detail of the pump.

As shown in the drawings the mechanism is carried by a base 1, with suitable supporting legs 2, 2. At the rear is a main driving shaft 3, see Fig. 1, supported in suitable bearings 4, Y on standards to extend the length of the ma- 90 chine. The shaft 3 is driven by suitable means, such as a motor 5, see Fig. '3, through reducing gears 6, and a chain 7, engaging a sprocket 8, on shaft 3. Most of themecha nism derives its power from shaft 3, except 95 I the mechanism for spinning or rolling in the bottom disk, where separate motors are employed.

The main purpose of the present invention is to operate on a blank 9, see Fig. 20, 1

this blank is Wrapped around the mandrel 13,-,

ly on opposite sides of the mandrel.

to produce a container of tubular form, see

modification of a few of the parts, such as the forming mandrel 13, a'receptacle could be formed substantially cylindrical, see Fig. 28. As will be further set forth in detail,

see Fig. 7, and the blank is of suiiicient size to have the edges 11 and 12 caused to lap, as indicated in Fig. 27 by the-brokenline.

Suitable means are provided to seciire these lapped margins, preferably by previously adding a suitable gum or adhesive, as indicated at 1 1, on the blank which'margin is engaged by the opposite margin.

Means are further provided whereby the previously gummed and dried margin will he moistened by water or steam after the blank leaves a pile of them, and before the edges are bent around the mandrel and lapped.

This mandrel 13, of frusto-conictlform is carried on a support 15 by its large end, with the other portions free to have the blank wrapped around it and slid" off. Belowthe mandrel is a support for the'blank. in the form of a pair of strips 16 and 17, having end lugs, on which the blank is fed to the proper position below the mandrel, extending equal- Means are provided normally positioned below the plane of these strips on which the blank rests, that will push the blank upward against the bottom of the mandrel, and partly wrap the blank at its middle portion around this part of the mandrel. This member, shown best in Figs. 7 and 12, comprises a sup'port 18 suitably guided for vertical movement in proper timed relation to other mechanism. The support 18 engages crank arms 19 and 20 rocked by bar 21 from a cam 25, on main shaft 3, see Fig. 1.

At the top of the support 18vis a block 26 having its upper face 27- curved to correspond with thelower face of the mandrel 13,

see Fig. 6. This block is slotted at 28 and 29 to receive the bars 16 and 17 that support the blank, and thus permit the block when raised to force the blank upwardly from these bars and press it against the mandrel for the exteht of this curved face 27, as indicated in broken lines in Fig. 6; i a

But this block is further provided" with spring plungers 30, normally held to project above the curved face a short distance, so

that the blank will be first engaged by the opposite high margins of the curved face, and

by the ends of these plungers. Thus the blank is raised by engagement with these portions in a flat position, until the plungers will first press the blank against the man-,

wrapping member on each projecting portion, that is, on each side of the block, these devices in duplicate comprise on each side a bar 31 that is carried by an arm 32 pivoted in a support 33, see Figs. 5--610. Each bar 31 swings on a pivot transverse to its length,

on a bracket 34; and this bracket is hinged,

at35 to the arm 32 to swing on an axis at a right angle to the pivot of the bar 31. A coil spring 36 between the arm 32 and the bracket 34 presses the bracket against a stop 37 on the arm, to normally hold the bar 31 in they desired position relative to arm 32, but permit it with the bracket to swing down. As said I provide two of these arms, 32, and 320 on the support 33. The arm 32 is fast on a short rock shaft and is rocked by an arm 38 thereon swungby bar 39 crank arm 22 and rod arm 23 from a cam 40 on a cross shaft 41, see Fig. 5 the latter turning by gears 42.

and 43 on main shaft 3.

The other arm 320 connected with rock arm 380 and through bar 390, is swung by cam 46 on said shaft 41, thesev cams are so designed as to swing the bars 31 inwardly by rockihg the arms32 and 320 in unison. These bars, see Fig. 6, will move inwardly against the mandrel and serve to bend inwardly the blank sides at this stage of the operation of the mandrel by the curved block 26. 'This engagement will takeplace at about the mid dle horizontal plane of the mandrel, and the pressure of the arms on each bar will cause it to swing upwardly from the bracket horizontally held by springs 36. lft will be un-" i derstood that the bars 31, when they engage the mandrel sides, can swing in a horizontal plane and thus conform to the conical shape of the'mandrel. The continued swing of the arms 32 and 320 tending to move the bars 31 inwardly will cause them to press the blank around the upper curvedportion of the mandrel, and the ends being of proper length will tend to lap on top of the mandrel. lit will be understood that during this latter movement the bars 31 will further swing to conform to the conical mandrel, that would not be required if the man These cams and condrel were a cylinder. nected mechanism for thus advancing the bars 31, are so arranged and timed that the plain edge of the blank will first be pressed across the top of the mandrel, and thereupon the gummed margin will be lapped over the top of the said edge. During this operation -or previous thereto, this gummed edge is moistened so that when these margins are lapped they will adhere. In this mechanism the final lap of these margins is not flattened by these bars, but by an additional member.

This operation is carried out by a bar 47,-

this purposeeach body as formed is ejected;

from the mandrel andadvanced to another station to receive thebottom. For this purpose the machine is provided with a conveyer shown in the formof an endless chain of holders denoted generally by 51. These holders are carried on a block chain 52 carried by sprockets 53 and 54. see Fig. 2; the latter isfast on a cross shaft 55, see Fig. 1,

.25 that'is intermittently advanced. The latter means, see Fig. 30, comprises a ratchet wheel 170 on shaft 55 engaged by pawl 171 on crank arm 172. The latter connects by bar 173 with a cam 174 "to rocks the crank back and Y forth the proper distance to cause the pawl to engage-one tooth on the wheel to intermittently turn the shaft 55 to advance the chain "the distance of the holders apart.

Means are further provided for'locking this shaft 55 in each of these positions, shownin Figs. 31 and 32 as comprising a lock bar 175 in a housing 176,..that is retracted by; spring 177 to be free of the notches in a disk 178 fast on shaft 55. A crankiarm-179 connects with the bar 175, and carries a roller- 18 0 that rides on a cam 181 fast on shaft 55. This'cam will serve to pushin the lockbar to hold the chain and holders in an indexed position. ,The bar is then returned by this;

5' springv so the disk and shaft may be advanced to next position. Theseholders each comprise complementary blocks 56, '57 mounted on hinges, at their lowerparts on rods 58, 59 carriedv by plate 60. The latter are secured to angle plates 61, see Figs. 15-19 fast to the links of the chain 52 with rollers j 164 that engage the sprocket wheels 53, 54, at their upper portions to the holder sections 5 are pressed together by'aspring'62, which holders have a borecorresponding to the shape of the conical container as shown in Fig. 27, and the larger end ofthe blocks will be brought in line with the mandrel '13, sucished body on the mandrel is ejected by suitable meanssuch as bars 63,, 64, see Fig. 1, that enter slots in the mandrel, see Fig. 12.

These bars are reciprocated after each body T is complete on the mandrel from a cam 66, on

shaft 3 by arm 67 on cross shaft 68 that carries crank arm 69.

A latch 71 on one of the holder sections engages pin 72 on the other section to lock the holder closed. A roll 74 on the latch is engaged by bars 75 and 7 6 alternately on the frame that will serve to swing the latch to lock and to releasethe sections when it is desired to eject the finished container.

After the finished body is advanced from the mandrel 13 to one of the holders, it is thereby carried to another station, indicated generally'by 77, where the bottom is inserted by means, best shown in Fig. 11. Here the bottom diskis cut from a web 7 8,'by a tubular punch 79 on a plunger 80 and the latter is mounted in a housing 81 and swung by arm 82 carrying a gear 83 engaging a rack 84 on the punch 80, a bar 85-having a crank pin riding in a' cam slot member 86 on the shaft 3.

The web from the roll 87 is fed down by any suitable means indicated at 88 intermittently to present the web between the cutting punch 79 and the punch block 89. The latter has a reduced bore at 90 to receive a plunger 91 that is advanced after the disk is thus cut and will force the disk through the reduced bore and form a V flange thereon. Further advance of this plunger will move the flange disk into the bore 92 in the holder-51 now held at this station, see Fig. 24. The plunger 91 is swung by lever 94, bar95 with pin 96 rid- I ing in slotted cam 97 on the shaft 3.

The advance of the carrier chain will bring the bodywith inserted bottom to another statiori indicatedat 98, seeflFig. 1. Here a shaft 99 rotated from suitable 'means such as a motor 100, carries a spinning disk 101. This shaft has a sliding connection at 102 by means of pins 160 on the motor shaft moving in an 'apertured disk 161. A similar disk 103 is positioned at the nextstation 162.and operated by similar shaft 104 by a motor 105, with extensible connection 106. These spinning disks 101 and 103 .are simultaneously advanced to engage the bottom member in p the bodies carried by the holders. A cross shaft 107 carries rock arms 108, 109, that engages collars on the shafts 99 and 104. These arms are operated by bars 110 and 111 engagadvance these disks during rest periods of the conveyer. thesetwo spinning disks operate in the usual manner to roll the end of the body and the ing cam disks 112 and 113 on the shaft 3, to i It will be understood that flangeof the bottom member inwardly as indicated in Fig. 24, and form a suitable bead For x h vwill ig y um the bottom t t 60 aessively as the chain is'advanced. Th fi e H am 1 'The next advance of the conveyer from the suitable means for receiving the container,

such as a belt indicated at 116, see Fig. 3. At

' this station a plunger 117, see Figs. 1, and 3, a mounted in a standard 118, is swung by crank arm 119 and link 120. A cam arm 121 engages a cam 122 on shaft 163, gear -164 on the latter through gear 165 engages gear 166, on cross shaft 167; on the latter a gear 168 engages gear 169 on main shaft 3, to actuate the plunger at the proper time. A plunger disk 123 on 117 will strike the end of the container and move it out of the holder into the chute, but it is first necessary to release the container from the holder, which is done by bars 124, 125 connected with the plunger 117 that engage stops 126, 127 on the holder, see Fig. 16, which -will move the sections apart, itfbeing understood that the latch 71 has been shifted as the holder arrives at this station by bar 7 5- for this purpose.

Suitable means are also. provided for feed- I ing the blanks 9 successively onto the bars 16, 17 on the mandrel, which is done by a traveling jaw member on a bar 129, see F igs.

6 and 8. The blanks 9 are placed on a table 128 and extend beyond the same a consider- .able distance at one edge of theblank as shown. The lowermost blank is caused to move downwardly at its extended portion f below the other blanks so that it can be en gaged bythe jaw member, shown in detail in Fig. 9. The bar 129 is movedback and forth by a lever 130 pivoted on the base at 131, and

- swungby arm 132, arm 133 with pin 134 en.-

gaging slotted cam 135 on shaft 41; The fixed jaw member 136 on bar 129 is engaged by a iswinging jaw 137 pivoted on jaw 136 that carries arms 1.38, 139.; a spring'140 on the latter tends to close the jaws when released. A latch lever 141 on the fixed jaw is pressed by spring 142 to engage arm 138 and hold the jaws open as shown. But when the jaws move over by lever 130 to engage the lowermost blank, see Fig. 6, the latch 141 is tripped by a stop 143, to release the jaw 137 to close on the ,blank. This is done at the final advance of lever 130 and as this lever is retracted it will carry the blank With' it be I The jaw member 136 carries a roller 144 that rides on a bar 145 passing through a slot/146 in the block 26, see Fig. 12, of'sufi'icient width to receive the bar 145 without interfering with the rise .of the block. This will permit the blank to be drawn acrossover this block and beneath the mandrel so .that the blank will lie half on each side of the block and mandrel as indicated in broken lines in Fig. 6.\ As the lever and jaw, member reach the advanced position, a stop 147 on bar 145 will strikearm 139 and swing the jaw member 137 up causing it to engage with latch 141 by its arm,

138, thus releasing the blank. I It will be "understood that this feeding member is operated in proper timed relation with the mov ing of the block and the other folding means herein set forth that Wrap the blank around the mandrel, and eject it therefrom before the jaws make another excursion.

Suitable means. are also provided for drawing down the lowermost blank in the pile on the tableatthe forward portion extending beyond the table as shown. A suction plunger 1 48 is provided that slides in a bracket, 149, connected by hose 150, with a suitable pump indicated generally at 151. A crank arm 152 connectedgwith the plunger and with a rod 153 serves to raise and lower the plunger from a cam 154on shaft 3 in. proper timed relation whereby the suction plunger will risejto engage the lowermost blank at the extended portions and when moved downwardly will draw downward this blank by bending it slightly as-indicated in Fig. 6. This will beheld in this position until the jaws are advanced and closed on the blank and it is released before the jaws retreat by a suitable valved device.

A presser bar 155 mounted in brackets 156 in the top of the blank holder is carried by arm 157 swinging on shaft 158 and is pressed downwardly by coil spring 159, to maintain 1 proper tension on the pile of "blanks, and permit additional ones to be inserted from time to time.

Means are further provided for causing a" 9 bend or crease in the blank 9 on the margins 11 and 12 that are caused to lap, that will facilitate the sealing by the gummed edge. Means for this purpose is shown at the front end of the machine in Fig. 1, and other views A table 182 on a standard 183 is engaged by a plate 184 on a plunger 185. The latter is moved up and down by lever 186. that carries yielding eccentric rod 187, see Figs. 4,# 13 and 14. This rod is actuated by an eccentric 188 that rotates free on the shaft 3 and it also carries an arm 189 with a beveled lug 190 projecting therefrom,. and normally pressed out from the cam by spring 191. On a cross bar 192 are fingers 193 engaged by .the blank9, when'inserted between the table and the plate 184. This bar has arm 194 that will rock lever 195 against tension spring 196 and move the notched end 197 away from its position normally supporting lug 190. This will permit the lug and arm 189 to swing out into the path of a pin 198 on disk 199, on

shaft 3, see Fig. 1. This will cause the arm and eccentric to be rotated that will move the bracket 187 downwardly and up to rock bracket or lever away from engagement with pin 198 and thus release the mechanism fromfurther movement. This creasing" device is preferably arranged to operated on several 130 blanks, and about five or six can be creased at each operation. The attendant merely forces this number of blanks against the arms under the plate that will automatically effect the movement of-the plate and withdrawing the blanks will cause the device to stop this operation. This arrangement is similar to that employed on punch presses. The blanks are then placed onthe feed table under the curved pressure foot without any feed interfering from the bottom of the pile of blanks.

Means for applying moisture to the blank 9 at the gummed edge 14: are shown in Fig. 6, where a pipe 255 is provided having openings or jets for the escape of steam or water supplied from a suitable source. A spring pawl 256 is arranged on arm 32 that will engage lever 257 that will rock a valve rod in the pipe to uncover the openingsitherein, permitting the steam or water to be directed against the partly bent blank indicated in broken lines in this view. This will occur on the inward swing of arm 32 and further advance will trip the pawl on the lever and the spray will cease. On the return of the lever 32 the pawl will slide over the lever and not open the valve device In Fig. 33 isshown the pump for operating the suction plunger 148 shown in Fig. 4. .The pump device 151 comprises a piston 250 operated from cam 251 by rod 252. A check valve 253 in the piston willengage a bolt 254 at the proper time to open the check valve and thus release the suction in the plunger 148. This is done when the plunger has drawn down theblank end and the gripper jaws engage the blank, thus releasing the blank from the plunger. stroke the valve will close and when the plunger engages the next blank the operation will be repeated.

What-I claim is 1. In a machine for forming a paper receptacle from a blank, the combination of a I mandrel, means for supporting a sheet of paper beneath the mandrel, a. holder having a channel-shape upper face adapted when raised beneath the blank to force it at the middle portion against the lower face of'the mandrel, and members arranged to engage 'the mandrel on opposite sides beyond the portion engaged by said holder to fold the s de portions of the blank around the mandrel with the edges lapping, said members being actuated and arranged to cause oneside of the blank to fold down previous to the otherside, said folding means including a bar hinged to swing on an axis to conform to the mandrel.

' ceptacle from a blank, the combination of a 2. In a machinefor forming a paper r'emandrel, means for supporting a sheet of paper beneath the mandrel, a holder having a channelshape upper face adapted when raised beneath the blank to force it at the On the return middle portion against the lower face of the mandrel, and members arranged to engage.

the mandrel on opposite sides beyond the.

portion engaged bysaid holder to fold the side portions of the blank around the mana drel with the edges lapping, said members being actuated and arranged tocause one side of the blank to fold down previous to the other side, said folding means including a bar hinged to swing'on an axis to conform to the mandrel, said bar being further supported back of the hinged member to swing on an axis transverse to said axis.

3. In a machine for forming a paper receptacle from a blank, the combination-of a mandrel, means for supporting a sheet of paper beneath the mandrel, a holder having I a channel-shape upper face adapted when. raisedbeneaththe blank to force it at the middle portion against the lower face of the mandrel, oneor more plungers at themiddle side portions of the blank around the mandrelwith the edges lapping, said folding means including a bar hinged to swing on an upright axis to conform to. the mandrel.

4. In a machine for forming a paper receptacle from a blank, the combination of a mandrel, 'means for supporting a sheet of paper beneath the mandrel, a holder having means adapted when raised beneath the blank to force it at the middle portion against the lower face of the mandrel,'one ormore plung-.

ers at the middle part of said holder normally pressed beyond the holder to-first engage the blank as the holder is raised to press it against the mandrel, which plunger recedesinto the holder as raised, and members arranged to engage the mandrel on opposite sidesbeyond the portion engagedby said holder to fold the side portions ofthe blank around the mandrel, with the edges lapping, said folding means including a bar hinged to swing on an upright axis to conform to atapering member, saidbar being further supported back of' the hinged member to swing on an axis transverse to sald axis.

5. In a machine .for forming a paper receptacle from a blank, the combination of a mandrel, means for supporting a sheet of paper beneath the mandrel, a holder having means adapted when raised beneath the blan -to force it at the middle portion against the lower face of the mandrel, and means arranged to engage the mandrel on opposite sides beyond the portion engaged by said holder to fold-the side portions of the blank 1 around the mandrel with the edges lapping,

Said folding means including a bar hinged to 7 ceptacle from a blank, the combination of a v to-swing on an upright axis to conform to the mandrel, said bar being further supported on mandrel, means for supporting a sheet. of paper beneath the mandrel, a holder having means adapted when raised beneath the'blank to force it at the middle portion against the lower face of the mandrel, and means arranged to engage the mandrel onopposite sides beyond the portion engaged by said holder to fold the side portions of the blank around the mandrel with the edges lapping, said folding means including a bar hinged to swing on an upright axis to conform to the mandrel, said bar being further supported on the hinged member to swing on an axis transverse to said axis. v

' 7. In a machine for forming a paper receptacle from a blank, the combination of a mandrel, means for supporting a sheet of paper beneaththe' mandrel, a holder having means adapted when raised beneath the blank to force it at the middle portion against the lower face of the mandrel, and means arranged to engage the mandrel on opposite sides beyond the portion engaged by said holder to fold the side portions of the blank around themandrel with the edges lapping, said folding means including a bar hinged the hinge member to swing on an axis transverse to said axis, said bar being supported to yieldably press against the mandrel.

8. In a machine for forming a paper re- A ceptacle from a blank, the combination ofra mandrel, means for supporting a sheet of paper beneath the mandrel, a holder adapted when raised beneath the blank to force itat bar being fu'rther'supported back of the v hinged members to swing on an axis transverse to said axis, said folders in final position leaving the lapped edges exposed, and

I the lapped edges.

a plunger arranged to'engage and compress 9. In a container forming machine, the combination with the frame, of an endless chain,'sprockets on which the chain is carried, operating means-toadvance the chain intermittently, an endless series of holders carried by the chain to be advanced at each step to bring the holders successively to a given station, operating means in themachine to form a containerbody and move 1t into the. holders successively-as advanced to such means, operating means arranged to in- 'to unlock thesectionsl -sections closed, a

latches as the chain travels to hold the latch sert a bottom in the container body carried by the said holders at a second station,operating means for securing said bottom in the container body at third station, and opera-- tive means at a fourth station toeject the finished container from the holders as brought to such station, saidholders being in complementary sections held together by spring pressure;

10. In a container forming machine, the

combination with the frame, of an endless tainer at a third station, and operative means\ at a fourth advanced station to eject the finished container from the holder as brought to such station, said holders being in comple; mentary sections held together by spring pressure, said ejector including means to separate said sections to permit removal of a receptacle I 1 i 11. In a machine forwrapping a blank of paper around a form to lap the edges, in b which one of the edges brought to contact is provided with a dry gummed 'facefadapted for sealing when moistened, the combination 1 with the wrapping means of a device arranged to apply moisture, means for causing the device to apply moisture against the said gummed face of the blank prior to the lapping of said edges by the wrapping m'eans,

comprising a perforated pipe, a valve rod in the pipe, and a pawl onone of the wrapping a A members arranged to shift said rod as, the blank is being wrapped to expose open ngs in the pipe for an instant, and which pawl will not operate on the return movement of g the wrapping means. 7 p 12. In a container formlng machme, the combination with-the frame of an endless chain, sprockets on whichthe chain is carried, operating means to advance the chain,

intermittenly, an endless series of holders carried by the chain to be advanced at each step to bring the holderssuccessivelyto a such means, each holder cdmprising complemental sections, a latch arranged to lock the fixed bar engaged by said closed, and a fixed bar engaged by thelatches in the travel of the chain to release the latches a f I sections closed, a fixed bar engaged by said latches as the chain travels to hold the latch closed, a fixed bar engaged by the latches in the travel of the chain to release the latches to unlock the sections, and a spring connecting the sections'to normally hold them in closed position. i

14. In a container forming machine, the

combination with the frame,- of an endless chain, bodv holders carried by the chain, said holders being in complementary sections held together by spring pressure, automatic means for controlling the sections. a series of stations in the path of the holders as advanced by the chain, means to advance the chain intermittently to bring the holders to register with the stations, means atone station-to feed a container body into the holder, means at another station to feed a container bottom into the container body, means at another station for securing the bottom in the container body, and means at another station to eiectthe container from the holder.

15.'In a container forming machine, the

combination with the frame, of an endless chain, body holders carried by thechain that are in complementary sections mounted on separate links of the chain, automatic means to control the opening and closing of the sections as the holders advance, a series of stations in the path ofthe holders as advanced by the chain. means to advance the chain in-' termittentlv to bring the holdersto'- register with the stations. means atone station to feed a container body into the holders, means at another station to feed a container bottom into the container body, means at another station for securing the bottom in the container body, and means at another station to eject the container fromthe holder.

16. In a container forming machine, the

- combination with the frame, of an endless chain, body holders carried by the chain that the holder, a latch to lock the sections closed, a fixed bar engaged by the latches asthe holders travel to hold the latch closed, and a fixed bar engaged by the latches as the holders travel to unlock' the sections.

' 17. Ina container forming machine, the combination with a mandrel of tapering form, of a pair of folders arranged one on each side of the mandrel, each folder having a bar extending axially of the mandrel and having a hinge support at its middleportion, means for advancing the bars to cause the blank to be directly pressed against the mandrel on opposite sides substantially on a line in the horizontal axial plane of the mandrel, and means for further advancing the bars whereby they will continue to directly press the blank against the mandrel as they wrap its meeting edges around the mandrel and cause the edges to lap.

Signed at New York city, N. Y., on February 23', 1926.

EDWARD o. ANGELL.

are in complementary sections, a series of stations in the path of the holders as advanced by the chain, means to advance the chain intermittently to bring the holders to regis ter with the stations, means'at one station to feed a container body into the holders, means at another station to feed a container bottom in to the said body, means at anotherstation for securing the bottom in the body, means at another station to eject the container from 

